Department of Orthopaedic and
Trauma Medicine
PHARMACOLOGY II
Year: 2022 Semester: 2
Session 3
Topic: Cephalosporins and
Aminoglycosides
th
Date: 12 April 2022
By: Carol Babu
,Cephalosporins
• Have almost a similar structure to
penicillins
• Have variable antibacterial activity
Mechanism of action
• Inhibit cell wall synthesis
• They are bactericidal
, Classification
❖ First generation cephalosporins
Oral preps: Cephalexin, Cefadroxil, Cephazolin
Injectables :Cephradine, cephazolin
❖ Second generation cephalosporins
• Haemophilus active – cefuroxime, cefamandole,
cefaclor